Laura Ingalls Wilder (1867–1957) finished her autobiography, Pioneer Girl, in 1930 when she was sixty-three years old. Throughout the 1930s and into the early 1940s, Wilder utilized her original manuscript to write a successful series of books for young readers. Her daughter, journalist Rose Wilder Lane, served as her editor and borrowed from her mother's life story to write two novels of her own. Pioneer Girl, which chronicles sixteen years of Wilder's pioneer youth, is where all the stories begin. Wilder died in Mansfield, Missouri, at ninety eyars of age on February 10, 1957.